Ok. I have played in a APA league for a couple years now. I enjoy it but I don't agree with a lot of the rules They have in place. And your opponent racking for your break is one of them. We have many people that will intentionally try to give you a lose rack. And then they get all offended when you look at it or asked for a rerack. All this nonsense could be avoided by rack your own break. And not having to call pockets on the shots just invites bangers to play their game.
Of course it invites the bangers. It's been widely discussed here that The APA is geared toward the less skilled player.
My thought is that the loser racking is a good thing, at least for The APA, maybe not so for other leagues. Loser racking is a sort of traditional part of American pool, and as the winner I'd rather have my opponent racking for me, but admittedly I'm far less skilled than many of you.